A Practical Treatise On Mining, Land And Railway Surveying, Engineering, Etc.: Containing The Errors Of The Magnetic Needle, Practical Geometry And Trigonometry - 9783375007584
A Practical Treatise On Mining, Land And Railway Surveying, Engineering, Etc.: Containing The Errors Of The Magnetic Needle, Practical Geometry And Trigonometry - 9783375007584